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Tuesday, October 21, 2008

Weekly Propagation Forecast Bulletins


Product: Weekly Highlights and Forecasts
:Issued: 2008 Oct 21 2221 UTC
# Prepared by the US Dept. of Commerce, NOAA, Space Weather Prediction Center
# Product description and SWPC contact: www.swpc.noaa.gov/weekly.html
#
# Weekly Highlights and Forecasts
#
Highlights of Solar and Geomagnetic Activity
13 - 19 October 2008

Solar activity was very low. Region 1005 (N27, L = 117, class/area, Cro/070 on 12 October) was quiet and stable. Region 1006 (S26, L = 157, class/area, Axx/030 on 17 October) formed on the disk on 16 October and decayed to spotless plage by 18 October. Both Regions 1005 and 1006 exhibited new-cycle magnetic configuration.

No proton events were observed at geosynchronous orbit.

The greater than 2 MeV electron flux at geosynchronous orbit reached high levels during 13 - 19 October.

Geomagnetic field activity was at predominately quiet to unsettled levels on 13 - 16 October. Active to isolated minor storm conditions were observed at high latitudes on 13 - 15 October.
Mostly quiet conditions prevailed from 17 - 19 October. ACE solar wind observations indicated that a recurrent coronal hole high-speed stream disturbed the field during 13 - 16 October, with initial solar wind velocities at about 550 km/s. Speeds steadily decayed throughout the next seven days and ended the summary period near 300
km/s.

Forecast of Solar and Geomagnetic Activity
22 October - 17 November 2008

Solar activity is expected to be very low.

No proton events are expected at geosynchronous orbit.

The greater than 2 MeV electron flux at geosynchronous orbit is expected to reach high levels during 22 - 28 October, 30 October - 06 November, and 08 - 15 November.

Geomagnetic field activity is expected to be at quiet levels during 22 - 27 October. Activity is expected to increase to unsettled to active levels during 28 - 31 October due to a recurrent coronal hole high-speed stream. Activity is expected to decrease to mostly quiet
levels during 01 - 06 November as the high-speed stream subsides. Activity is expected to increase to minor storm levels with a chance for major storm periods on 07 November due to a recurrent coronal hole high-speed stream. Activity is expected to decrease to unsettled to active levels on 08 - 09 November as the high-speed stream subsides. From 10 - 17 November, activity levels are expected to mostly quiet.



Product: 27-day Space Weather Outlook Table 27DO.txt
:Issued: 2008 Oct 21 2222 UTC
# Prepared by the US Dept. of Commerce, NOAA, Space Weather Prediction Center
# Product description and SWPC contact: www.swpc.noaa.gov/wwire.html
#
# 27-day Space Weather Outlook Table
# Issued 2008 Oct 21

#
# UTC Radio Flux Planetary Largest
# Date 10.7 cm A Index Kp Index
2008 Oct 22 68 5 2
2008 Oct 23 68 5 2
2008 Oct 24 68 5 2
2008 Oct 25 68 5 2
2008 Oct 26 68 5 2
2008 Oct 27 68 5 2
2008 Oct 28 68 8 3
2008 Oct 29 68 12 3
2008 Oct 30 68 15 4
2008 Oct 31 68 10 3
2008 Nov 01 69 5 2
2008 Nov 02 69 5 2
2008 Nov 03 69 5 2
2008 Nov 04 70 5 2
2008 Nov 05 70 5 2
2008 Nov 06 70 5 2
2008 Nov 07 70 35 6
2008 Nov 08 70 15 4
2008 Nov 09 70 10 3
2008 Nov 10 70 5 2
2008 Nov 11 70 5 2
2008 Nov 12 70 5 2
2008 Nov 13 69 5 2
2008 Nov 14 69 5 2
2008 Nov 15 69 5 2
2008 Nov 16 68 5 2
2008 Nov 17 68 5 2
(NOAA)